Worksheets1. Structure and Function
Total questions: 50
Worksheet time: 25mins
What organelle controls all cellular activity
mitochondria
nucleus
chloroplast
plasma membrane
What is the function of the plasma membrane?
controlling all cellular activity
photosynthesis
cellular respiration
transport in and out of the cell
What organelle is made of cellulose?
cell wall
plasma membrane
chloroplast
ribosome
aerobic cellular respiration is the function of the
chloroplast
mitochondria
ribosome
vacuole
What organelle do euglena use to make glucose via photosynthesis?
ribosomes
mitochondria
vacuole
chloroplasts
Which organelle makes proteins and enzymes? The process is called protein synthesis or enzyme synthesis.
ribosomes
chloroplasts
mitochondria
vacuole
Storage of food, water, and waste in a eukaryotic cell is accomplished by what organelle?
chloroplast
plasma membrane
mitochondria
vacuole
Which organelle is made of phospholipids and proteins?
plasma membrane
cell wall
vacuole
mitochondria
Which 2 organelles have their own DNA that is similar to prokaryotic DNA?
plasma membrane and chloroplast
vacuole and ribosome
ribosome and mitochondria
mitochondria and chloroplast
What do prokaryotic and eukaryotic cells have in common?
chloroplasts
vacuoles and plasma membrane
ribosomes and plasma membrane
mitochondria and ribosomes
Which type of cell has circular DNA?
prokaryotic cells or bacteria
eukaryotic cells
plant cells
animal cells
Pro has no
nucleus or membrane bound organelles
nucleus or ribosomes
DNA
cell wall or cell membrane
Is all DNA in an organism the same?
yes
no
If all DNA in an organism is the same, why do we have cells that are so different?
some DNA is activated and other is not, making different cells
environmental affects change our DNA
enzymes act on our cells changing the DNA
that's just the way things are
Why is the inner surface (membrane) of the mitochondria folded?
to provide more carbon dioxide
to provide more surface area for more respiration
to provide more water for respiration
to make less oxygen
What makes energy in the form of ATP?
mitochondria
chloroplast
ribosome
nucleus
What organelles do plant cells have that animal cells do not have.
mitochondria and chloroplasts
nucleus and ribosomes
chloroplasts and cell wall
plasma membrane and cytoplasm
The only type of prokaryotic cell is
virus cells
plant cells
animal cells
bacteria cells
DNA and RNA are found in both prokaryotic and eukaryotic cells but the difference is
in a prokaryotic cell, they are enclosed in a membrane
in a eukaryotic cell, they are enclosed in a membrane
Circular DNA, called plasmids, are only found in
prokaryotic cells
eukaryotic cells
plant cells
animal cells
Which cells are smaller and simpler?
plant
animal
bacteria
virus
What cell carries electrical impulses used to communicate with other cells and organs?
red blood cell
white blood cell
nerve cell
sperm cell
Which cell contains hemoglobin and carries oxygen to all other cells in the body?
red blood cell
white blood cells
nerve cell
sperm cell
Once a cell is differentiated, can it return to a nondifferentiated state by itself?
yes
no
Undifferentiated cells are called
new cells
specialized cells
embryonic cells
stem cells
Which 2 body systems maintain homeostasis in an organism?
nervous and digestive
digestive and endocrine
digestive and circulatory
nervous and endocrine
Shivering when you are cold, sweating when you are hot, a dog panting when it is hot, migration, hibernation, and estivation are all examples of bodies maintaining....
homeostasis
specialty
diffusion
interphase
Buffers help an organism by
regulating pH; maintaining homeostasis
regulating blood sugar; maintaining homeostasis
maintaining osmotic pressure
helping keep an organism at a high pH
Transport across a semi permeable membrane from high to low concentration is
passive transport
active transport
If a cell is using energy, substance is moving against a gradient to maintain an imbalance from a low concentration to a high concentration, what is happening?
active transport
passive transport
osmosis
diffusion
The movement of water from high to low concentration is called
diffusion
active transport
osmosis
which part of the cell or plasma membrane is in a bi-layer?
proteins
phospholipids
markers
water
The part of the plasma membrane that acts as a door to let larger things in and out of the cell is called a
phospholipid
protein
marker
enzyme
Flagella in the Euglena, cilia in the Paramecium and the pseudopodia in the Amoeba are all used for
gathering food
making food
moving to gather food
making protein
Why does a Euglena have an eyespot?
to find the sunlight
to make food
to see where the food is
to photosynthesize
What structure do all unicellular organisms have that help maintain water balance?
vacuoles
chloroplasts
pseudopodia
contractile vacuoles
Nuclei are only found in
eukaryotic cells
bacteria cells
prokaryotic cells
plant cells
the asexual reproduction of body cells is called
mitosis
meiosis
binary fission
vegetative propagation
All unicellular organisms and all bacteria (Monera) reproduce by
mitosis
binary fission
vegetative propagation
fragmentation
If an organism has chloroplasts, a flagella, an eyespot and a cell wall, it is a
protist
plant cell
animal cell
bacteria
Which tissue will have the most mitochondria?
cardiac tissue
muscle tissue
fat
skin
What plant part serves the same function as our lung or the fishes gills?
cell wall
plasma membrane
chloroplast
stomata
Which cells can carry out both photosynthesis and respiration?
plant cells
animal cells
bacteria
paramecium
If a cell is placed in a saline solution, what will happen to it?
it will swell
it will shrink
it will burst
If an 80% glucose solution contains a semi-permeable bag with 80% glucose solution, what will happen to the bag?
water will go in and out and there is no change in the bag
water will leave the bag and it will shrink
water will enter the bag and it will swell
When an enzyme gets too hot
the active site denatures and it quits working
it works faster
it works slowly
A lipase will not work on a protein, why?
they are active site shape specific
a lipase works at a higher pH
a protein is not able to be broken down
Which organic molecule is used for quick and daily energy?
carb
lipid
protein
nucleic acid
Which organic molecule is used by whales when they migrate, or by polar bears to stay warm?
carb
lipid
protein
nucleic acid
Enzymes are which type of organic molecules?
carb
lipid
protein
nucleic acid
